ADS5294 datasheet(18/67 Pages) TI1

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Input Signal frequency (MHz)

−140

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

Frequency (MHz)

SNR = 76.5 dBFS

SINAD = 76.5 dBFS

SFDR = 88.4 dBc

THD = 87 dBc

−140

−130

−120

−110

−100

−90

−80

−70

−60

−50

−40

−30

−20

−10

Frequency (MHz)

fIN1 = 8 MHz

fIN2 = 10 MHz

Each Tone at −7dBFS Amplitude

Two Tone IMD = −91.4 dBFS

ADS5294

SLAS776B – NOVEMBER 2011 – REVISED JULY 2012

www.ti.com

TYPICAL CHARACTERISTICS (continued)

Typical values are at 25°C, AVDD = 1.8 V, LVDD = 1.8V, 50% clock duty cycle, –1 dBFS differential analog input, 14 Bit/80

MSPS, ADC is configured in the internal reference mode, unless otherwise noted.

Figure 12. FFT for 15 MHz Input Signal,

Figure 13. Two Tone Intermodulation

Sample Rate = 40 MSPS

Figure 14. Signal -To-Noise Ratio vs. Input Signal

Figure 15. Spurious-Free Dynamic Range vs. Input Signal

Frequency

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